The vast majority of owners of devices running iOS 11 complain of a decrease in their autonomy. This was shown by a public opinion poll conducted by the British edition of Telegraph. According to its results, it turned out that more than 80% of respondents experience charge leakage regardless of the actions taken.
The weakened autonomy of devices based on iOS 11 was also confirmed by Wandera experts, having conducted an independent experiment. The researchers analyzed 50,000 iPhones and iPads and compared the average battery life for three days. The result was disappointing.
About 16% of participants plebiscite in turn said that they did not notice any changes in the battery life of their devices. We tend to believe that the respondents who chose this point of voting are the owners of the iPhone Plus-versions, which always had a very capacious battery.
The remaining 3% of respondents noted that after the update on iOS 11 level of autonomy of their devices remained at the same level. Such an outcome is also possible, provided that they use one of the models of the iPad 2016-2017 years of release. As practice shows, on the tablets iOS 11 works better than on smartphones.